Based on the amphitheatre in the ancient Greek city of Epidaurus, and nestled in a natural valley, the Waldbuhne theatre seats 22,000 in leafy comfort and remains one of Berlin's favourite open air concert venues, with magnificent views of the stage. World class conductors lead the Berlin Philharmonic in evening concerts of popular favourites. Conducted by the celebrated James Levine, the 1999 Waldbuhne concert for the Berlin Philharmonic features music by Richard Strauss and Richard Wagner. The orchestra is joined by the accomplished Canadian tenor Ben Heppner, who is renowned for his electrifying Wagner performances.